Wrapping up the year, a year brimming with milestones and achievements, including running events (“that was massive for me, it’s not something I thought I could ever, or would ever do”) posing on the cover of Women’s Health (“I had such great feedback”), getting engaged and growing a year older (“every year that I get older I feel more comfortable and more confident with who I am”) she’s still got more to achieve in the next 12 months.

“I feel like my goals are the same every year,” Heinrich told myBody+Soul when asked about her new year’s resolutions, “more healthy, more happy and more confident and other things will flow from that. I don’t ever have a goal where I say ‘I’ve got to lose a couple of kilos’, my goal is to be more healthy and that’s probably going to be my goal for the rest of my life and also just more happy, and that comes from who you surround yourself with and being really positive.”

But surely Heinrich couldn’t possibly be more healthy, especially with a live-in personal trainer and nutrition advisor in her boyfriend and founder of The Robards Method, Tim Robards?

“Maybe less chocolate,” she concedes. “And I don’t do yoga that often and Tim does it a lot and recently, I’m like ‘I’m coming with you, I’m going to do it’ and little things like that. So yes, I’m actually going to start doing more yoga if he doesn’t mind me coming.”

Despite feeling like there is always room to improve, Heinrich’s physique is the envy of most women. She’s fit, strong and looks equally as good in activewear as she does in a floor-length gown on the red carpet.

Her secret? Variety.

“I definitely try to mix it up, that’s really important because if you were just running or just doing the one thing you’re not working different muscles and different parts of your body so I definitely keep it varied,” she reveals.

“There are times when I work out with Tim and his TRM program which is all calisthenics based so we’ll be using the rings and doing body weight exercises, there are other times where I go to the gym, I love my pump classes and there are other times where I try and incorporate fitness into my every day life. I’ll go for walks, I try and do things like always take the stairs and walk when I can. I’m starting to do yoga and I really like boxing so when I can, I’ll get to a class or I’ll go with Tim.”

Since moving out of home and moving in with Robards, Heinrich says her diet has changed dramatically. Her mum is an amazing cook who would make three-course meals every night, but life in the Heinrich-Robards household is now all about balance.

“I don’t follow any diets, it’s more about creating a healthy lifestyle which is suitable to me,” she says. “I’ve rarely gone on any form of diet, it’s more about changing the way I eat instead of doing a diet for a week or two weeks, it’s more about changing my lifestyle in general to be more healthy.”

Heinrich says every day on a plate is different for her depending on what she is doing. Some days she will have breakfast, other days she will combine breakfast and lunch as a form of intermittent fasting (which means eating for around an eight hour window each day, for example 12:00 pm to 8:00 pm).

“If I’m having breakfast, I normally go for two boiled eggs, half an avocado and half a tomato,” she says of her toast-free first meal, “lunch will normally be a salad of some type with tuna or grilled chicken, I love my salads and then depending on where I am, if I’m at my mums I’m definitely not going to be having a healthy meal but if I’m at home I’ll go for a piece of steak, or a piece of chicken and some vegetables. “I might have a few snacks in between each meal, maybe a piece of fruit or some nuts or Tim makes these really great smoothies. I love a coffee and green tea too.”

Robards’ “really great smoothies” by the way are a meal in themselves.

During the interview, she yells out to him to ask what’s in them and recites the ingredients back over the phone.